Many patients, including some physicians, overemphasize the importance of taking medication and neglect physical exercise. In fact, in order to achieve satisfactory results and maximize the mobility of the joints, the patient must be treated with medication along with the corresponding rehabilitation therapy. Physical exercise should be aimed at the following three objectives (1) Maintaining thoracic mobility. (2) Maintain the flexibility of the spine. (3) Maintain the motor function of the limbs, prevent or reduce muscle atrophy due to disuse of the limbs, maintain bone density and strength, and prevent osteoporosis, etc. The pathological basis of ankylosing spondylitis is tendon attachment point inflammation, fibrosis and ossification of these areas will affect the function of the body, proactive and correct physical exercise will help maintain the normal function of the body. Do not be bedridden because of pain and unwilling to move, which will only accelerate the progress of the disease. The intensity of exercise depends on the specific condition, and it is generally believed that the pain should not last for more than 2 hours after exercise. At least one set of deep breathing activities every day can help maintain the mobility of the thorax and improve lung capacity. Other more appropriate exercises are: jogging, swimming, tai chi, etc. When swimming, the body in the water in a flat position, buoyancy offset the effect of gravity, all the joints and muscles can be effective exercise, pay attention to should be as much as possible with a variety of ways to swim. It is best to avoid high-intensity strenuous sports, such as wrestling, playing tennis, basketball and table tennis. When playing sports, trainers with cushioning effect insoles should be worn to reduce trauma to the joints. Special emphasis should also be placed on patients with hip lesions to insist on functional exercises for the hip joint, such as abduction and squatting, in order to maintain a good functional state of the joint and reduce the possibility of joint disability.